a(n) = a(n-1) + c(n-1) for n >= 2, a( ) increasing, given a(1)=6; where c( ) is complement of a( ).

Terms

a(0) =6a(1) =7a(2) =9a(3) =12a(4) =16a(5) =21a(6) =29a(7) =39a(8) =50a(9) =63a(10) =77a(11) =92a(12) =109a(13) =127a(14) =146a(15) =166a(16) =188a(17) =211a(18) =235a(19) =260a(20) =286a(21) =313a(22) =341a(23) =371a(24) =402a(25) =434a(26) =467a(27) =501a(28) =536a(29) =572